translator: Fix style in CodeGen.cpp. BUG=None Change-Id: I321ec7af6779c6524b83959da21520a4fb09d8e2 Reviewed-on: https://chromium-review.googlesource.com/408317 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>